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From: Jeff Layton <jlayton@redhat.com>
To: David Howells <dhowells@redhat.com>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] statx: Add a system call to make enhanced file info available
Date: Fri, 18 Nov 2016 07:01:49 -0500	[thread overview]
Message-ID: <1479470509.2563.3.camel@redhat.com> (raw)
In-Reply-To: <25389.1479458901@warthog.procyon.org.uk>

On Fri, 2016-11-18 at 08:48 +0000, David Howells wrote:
> Jeff Layton <jlayton@redhat.com> wrote:
> 
> > 
> > > 
> > > If neither AT_STATX_*_SYNC flag is set, the behaviour is the default for
> > > stat() on that filesystem.
> > > 
> > 
> > We also need to specify here what happens if both bits are set. Should
> > that be -EINVAL?
> 
> Makes sense.
> 
> This leads to another thought: should fstatat() be allowed to take AT_STATX_*
> flags?
> 
> David

In principle, we could. fstatat currently rejects flags that it doesn't
understand with -EINVAL.

That said, I'd vote no -- if you wanted to change an application to
start setting these flags in fstatat calls, then it's just as simple to
convert it over to use statx. I don't see a lot of benefit in adding
that to a legacy syscall.

-- 
Jeff Layton <jlayton@redhat.com>

  reply	other threads:[~2016-11-18 12:02 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-17 13:34 [RFC][PATCH 0/4] Enhanced file stat system call David Howells
2016-11-17 13:35 ` [PATCH 1/4] statx: Add a system call to make enhanced file info available David Howells
2016-11-17 18:39   ` Jeff Layton
2016-11-18  2:32     ` Andreas Dilger
2016-11-18  8:59     ` David Howells
2016-11-18  8:59       ` David Howells
2016-11-18  9:25       ` Andreas Dilger
2016-11-18  9:25         ` Andreas Dilger
2016-11-17 23:40   ` Dave Chinner
2016-11-18  3:28     ` Andreas Dilger
2016-11-18 22:07       ` Dave Chinner
2016-11-18 22:54       ` David Howells
2016-11-19 22:43         ` Dave Chinner
2016-11-21 14:30         ` One Thousand Gnomes
2016-11-21 20:43           ` Dave Chinner
2016-11-22 10:39         ` David Howells
2016-11-22 13:55           ` Jeff Layton
2016-11-22 20:58           ` Dave Chinner
2016-11-18  9:53     ` David Howells
2016-11-18  8:48   ` David Howells
2016-11-18 12:01     ` Jeff Layton [this message]
2016-11-18  9:36   ` David Howells
2016-11-18 17:17     ` Jeff Layton
2016-11-18 18:04     ` David Howells
2016-11-18 18:54       ` Jeff Layton
2016-11-18 19:08       ` David Howells
2016-11-18  9:43   ` David Howells
2016-11-18 21:41     ` Dave Chinner
2016-11-18 22:24     ` David Howells
2016-11-18 10:29   ` David Howells
2016-11-18 10:29     ` David Howells
2016-11-18 21:27     ` Dave Chinner
2016-11-18 21:48     ` David Howells
2016-11-18 21:48       ` David Howells
2016-11-18 22:17       ` Dave Chinner
2016-11-18 22:17         ` Dave Chinner
2016-11-19 10:21         ` Michael Kerrisk (man-pages)
2016-11-17 13:35 ` [PATCH 2/4] statx: Ext4: Return enhanced file attributes David Howells
2016-11-18  3:30   ` Andreas Dilger
2016-11-17 13:35 ` [PATCH 3/4] statx: NFS: " David Howells
2016-11-17 13:35 ` [PATCH 4/4] statx: AFS: " David Howells
2016-11-18  3:34   ` Andreas Dilger
2016-11-18  8:47   ` David Howells
2016-11-17 14:39 ` [RFC][PATCH 0/4] Enhanced file stat system call One Thousand Gnomes
2016-11-17 15:10 ` Michael Kerrisk
2016-11-17 16:33 ` David Howells
2016-11-17 16:45 ` David Howells
2016-11-17 20:00   ` J. Bruce Fields
2016-11-18  2:30     ` Andreas Dilger
2016-11-18  4:29       ` NeilBrown
2016-11-18 13:41   ` One Thousand Gnomes
2016-11-18 13:49   ` David Howells

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